Alleviating salt stress in almond rootstocks using of humic acid

Hatami, Elnaz; Shokouhian, Ali Akbar; Ghanbari, Ali; Naseri, Lotfali

doi:10.1016/j.scienta.2018.03.034

Cited by 57 publications

(34 citation statements)

References 30 publications

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“…In our study, HA increased the protein content. Others have reported similar findings (Fernández, Cosio‐Vargas, Montero, García, & López, ; Hatami et al., ).…”

Section: Discussionsupporting

confidence: 64%

“…(), who reported that soluble protein content was significantly reduced under salinity stress. The decrease in protein content under salinity stress may be due to increased sodium content and consequently, reduction in potassium, increased proline synthesis, protease enzyme activity and hydrolysis of the rubisco enzyme (Hatami et al., ). On the other hand, our results were similar with Zrig, Ben Mohamed, Tounekti, Ahmed, and Khemira () and Nimir et al.…”

Section: Discussionmentioning

confidence: 99%

“…Increasing soluble protein is an important mechanism that plants use to mitigate high salt concentrations (Hatami, Shokouhian, Ghanbari, & Naseri, ). In the present study, soluble protein content was increased at the 200 mL NaCl salinity level and subsequently decreased at the 100 mM NaCl salinity level.…”

Section: Discussionmentioning

confidence: 99%

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Exogenous jasmonic acid and humic acid increased salinity tolerance of sorghum

et al. 2020

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Salinity limits germination and plant growth and development in 45 million ha worldwide. Techniques to overcome this problem are needed. This project investigated the effects of jasmonic acid (JA) (0, 5, and 10 mM JA) and humic acid (HA) (0, 3, and 6 g HA kg −1 soil) on growth and physiological parameters of forage sorghum (Sorghum bicolor L. Moench) under different NaCl salinity levels (0, 100, and 200 mM NaCl, with an equivalent electrical conductivity (EC) of 0.12 dSm −1 as control treatment, 3.22, and 5.78 dSm −1 , respectively). NaCl salinity reduced emergence percentage, emergence rate, salt tolerance index and seedling vigor index, all seedling growth parameters, ascorbate peroxidase (APX) activity, chlorophyll a, b and total chlorophyll content. Proline content and soluble protein content were increased with salinity. At the 200 mM salinity level, seeds treated with 10 mM JA had a positive effect on emergence percentage, emergence rate, shoot length, total fresh weight, salt tolerance index, seedling vigor index, chlorophyll a and total chlorophyll content. At 200 mM NaCl salinity level, seeds treated with 6 g HA kg −1 soil had increased root length, total dry weight, salt tolerance index, seedling vigor index, shoot length, protein content, APX, chlorophyll b, and total chlorophyll in seedlings. The application of 5 mM JA combined with 6 g HA kg −1 soil was most effective in minimizing salinity stress. Our study suggested that the appropriate combined application of HA and JA could efficiently protect early seedlings from salt stress damage and alleviate abiotic stress.Abbreviations: APX, ascorbate peroxidase; HA, humic acid; JA, jasmonic acid; ROS, reactive oxygen species.

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“…In our study, HA increased the protein content. Others have reported similar findings (Fernández, Cosio‐Vargas, Montero, García, & López, ; Hatami et al., ).…”

Section: Discussionsupporting

confidence: 64%

Section: Discussionmentioning

confidence: 99%

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Exogenous jasmonic acid and humic acid increased salinity tolerance of sorghum

et al. 2020

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“…Humic acid can activate many biochemical processes in crop plants by increasing the activities of enzymatic antioxidants such as CAT, POD, and SOD. These enzymatic antioxidants play important roles in activating the formation of structural proteins (Hatami et al, 2018). Humic acid can also decrease peroxidation and increase total protein content by increasing the uptake of nutritional elements in tuberose plants ( Polianthes tuberose L.) (Beni et al, 2013) and banana (Fernández et al, 2013).…”

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confidence: 99%

Ameliorative Effects of Jasmonic Acid and Humic Acid on Antioxidant Enzymes and Salt Tolerance of Forage Sorghum under Salinity Conditions

et al. 2019

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Salinity is one of the most important factors that reduce the growth and antioxidant defense of plants. A controlled pot experiment was conducted to investigate the ameliorative effects of jasmonic acid (JA) priming (0, 5, and 10 mM) and humic acid (HA) (0, 3, and 6 g HA kg−1 soil) amendment on antioxidant enzymes and salt tolerance of forage sorghum seedling (Sorghum bicolor L.) grown under three salinity conditions (0, 100, and 200 mM NaCl). Salinity stress reduced emergence seedling index (ESI), promptness index (PI), emergence stress tolerance index (ESTI), dry weight stress tolerance index (DWSTI), and the activities of the peroxidase (POD) and catalase (CAT) enzymes. The activity of superoxide dismutase (SOD) and malondialdehyde (MDA) content increased with salinity. Application of JA positively affected all parameters except CAT and MDA. Humic acid significantly increased all measured parameters except ESTI, DWSTI, and SOD activity. At the 200 mM NaCl level, JA and HA increased CAT, POD, SOD, ESI, DWSTI, ESTI, PI, and MDA as compared with the control. The application of HA at 6 g kg−1 soil decreased SOD and ESI relative to the control at high salinity. The application of 10 mM JA combined with HA at 6 g kg−1 soil was most effective in alleviating salinity stress. Therefore, the combined application of JA and HA on forage sorghum may improve salt tolerance and increase antioxidant enzymes that alleviate damages caused by salinity stress. Core Ideas Application of jasmonic acid and humic acid (HA) mitigated salinity stress. Jasmonic acid (JA) and HA increased the antioxidant enzymes. Applying a combination of JA and HA at high levels of salinity improved salt tolerance.

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“…However, the chemistry and function of organic matter have been a subject of controversy, since plant growth depends mainly on inorganic compounds (Nora and Amado, 2013; Senn and Kingman, 1973). Humic substances influence soil fertility by increasing water‐holding capacity of the soil (Khaleda et al, 2017a), changing soil physical, chemical, and biological structure (Hatami et al, 2018), increasing the permeability of plant membranes, and promoting the uptake of nutrients under salinity (Khaleda et al, 2017b; Kumar et al, 2017; Nardi et al, 2018). However, either rainfall or severe drought can change the character of different soils under saline irrigation.…”

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confidence: 99%

Can Humic Substances Improve Soil Fertility under Salt Stress and Drought Conditions?

et al. 2019

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Semiarid soils may be poor in organic carbon, a necessary source of energy for soil microorganisms that affect plant growth. Although the addition of organic carbon may improve soil chemical characteristics, the concentration of humic compounds in the organic component may vary and affect soil chemical composition. We evaluated the effect of two sources of humic compounds on a dystrophic yellow Oxisol cultivated with passion fruit (Passiflora edulis Sims f. edulis) and irrigated with saline water during a severe drought in the Brazilian semiarid region. Soil fertility was evaluated during two seasons. A bovine biofertilizer and an organic commercial amendment (Humistar) were used as sources of humic compounds. Salinity resulted in reduced soil fertility, mainly during the lower rainfall period. The combination of humic substances and salinity increased soil salinity. Humistar, more concentrated in humic acid than fulvic acid, increased both acidity and salinity of the Oxisol under study during the lower rainfall period. Our results contradict the general idea that organic matter can mitigate the harmful effects of salts in semiarid soils because the addition of organic sources to the soil, mainly during a severe drought period, may reduce soil fertility. Although this response may depend on the concentration of humic acids in the amendment, our results suggest that the correction of soil chemistry with the application of either amendment to Oxisols under semiarid conditions, mainly during severe drought, is not economically feasible. Core Ideas Saline irrigation reduces the fertility of Oxisols, mainly in low‐rainfall periods. The combination of humic substances and salinity increased salinity of Oxisols. During low‐rainfall periods, humic substances reduced Oxisol fertility.

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Alleviating salt stress in almond rootstocks using of humic acid

Cited by 57 publications

References 30 publications

Exogenous jasmonic acid and humic acid increased salinity tolerance of sorghum

Exogenous jasmonic acid and humic acid increased salinity tolerance of sorghum

Ameliorative Effects of Jasmonic Acid and Humic Acid on Antioxidant Enzymes and Salt Tolerance of Forage Sorghum under Salinity Conditions

Can Humic Substances Improve Soil Fertility under Salt Stress and Drought Conditions?

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